Ortel’s Model 755MM-U is a 1550 nm transmitter suitable for link
lengths of up to 10 km with 79 channel analog loading. The 755MM-U
may also be used up to 20 km with a lower channel load of 11 analog
channels and 40 QAM channels. The 75Ω
RF video input supports
frequencies up to 870 MHz. A 50Ω (75
Ω
available ) RF input supports
frequencies from 950 to 2600 MHz for FTTP, L-Band satellite, and
wireless applications.
Applications
Video signal distribution to
HFC CATV and FTTP nodes
Video overlay in passive
optical networks (PON)
Combines CATV + L Band
inputs into a single platform
Also integrated into the RF/Optical design are Ortel’s low chirp control
and noise suppression circuitry. Ortel’s patented pre distortion
technology provides outstanding performance with any of Ortel’s wide
range of cooled broadband lasers. These modules have optional dual
redundant power supplies and SNMP capability.
The performance specifications indicated below are subject to change.
Performance Highlights
Parameter
Operating Temperature Range
Wavelength (Multiple Options)
Optical Power
Frequency Response
CNR (10 km)
CNR (20 km)
CSO (10 km)
CSO (20 km)
CTB (10 km)
CTB (20 km)
SBS (10 km)
SBS (20 km)
RF Input Return Loss
Optical Return Loss
Min
0
1530
10
47
950
52
48
-
-
-
-
-
-
16
40
Typ
25
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
50
1560
-
870
2600
-
-56
-56
-63
-63
17
12
Unit
°C
nm
dBm
MHz
MHz
dB
dBc
dBc
dBc
dBc
dBm
dBm
dB
dB
Features
Optical Spectrum Reshaping
Technology
Optimized RF integration of
predistorter, amplifiers and
laser
Dual redundant power
supplies
Supports SNMP protocol
Complete, efficient laser bias
and TEC control circuitry
OEM/ODM opportunities
available through Ortel
Wideband Transmitter
Digital monitoring and control
ITU Wavelengths
-
-
See following pages for complete specifications and operating/test conditions.
For more information on this and other products:
Contact Sales at Ortel 626-293-3400, or visit www.emcore.com.
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
Parameter
Operating Temperature Range
Storage Case Temperature Range
RF Input Level
Symbol
T
OP
T
stg
-
Min.
0
-20
-
Max.
50
65
3
Unit
°
C
°
C
dBm
RF Characteristics
Parameter
Bandwidth
Frequency Response
RF Input Level
CNR
3
(10 km)
CNR
5
(20 km)
CSO
2
(10 km)
5
CSO (20 km)
CTB
2
(10 km)
5
CTB (20 km)
Input Impedance
75Ω Video Input Return Loss
75Ω Test Port Input Return Loss
50Ω Input Return Loss
4
1.Excludes tilt component.
2.CW carriers, 79 channel NTSC channel plan, 4 MHz noise bandwidth, -5 dBm received power, SMF-28 or equivalent.
3. CW carriers, 79 channel NTSC channel plan, 4 MHz noise bandwidth, 0 dBm received power, SMF-28 or equivalent
4. 75Ω option available
5. 11 channel NTSC channel plan with 40 channel QAM, 4 MHz noise bandwidth, 0 dBm received power, SMF-28 or equivalent
Condition
-
47-870 MHz
950-2600 MHz
79 channels analog
11 channel analog + 40 QAM
-
-
-
-
-
-
47 – 870 MHz RF Input
950-2600 MHz RF Input
47 to 870 MHz
47 to 870 MHz
950 to 2600 MHz
Min
47
-
-
-2.5
-5.8
52
48
-
-
-
-
-
-
16
16
10
Typ
-
-
-
-2
-5.3
-
-
-
-
-
-
75
4
50
-
-
-
Max
2600
1.5
3.5
1
Unit
MHz
dB
p-p
dB
p-p
dBm
dBm
dB
dB
dBc
dBc
dBc
dBc
Ohms
Ohms
dB
dB
dB
-1.5
-4.8
-
-
-56
-56
-63
-63
-
-
-
-
-
Optical Characteristics
Parameter
Optical Output Power
SBS Threshold
Side Mode Suppression Ratio
Optical Return Loss
1
Condition
-
10 km SMF-28
20 km SMF-28
-
APC style connector
Min
-
-
-
30
40
Typ
10
-
-
-
-
Max
-
17
12
-
-
Unit
dBm
dBm
dBm
dB
dB
1. In order to prevent reflection-induced distortion, the laser must be connected to an optical cable having a return loss of at least 55 dB for discrete
reflections and 30 dB for distributed reflections
2 of 5
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
Power Requirements
Parameter
AC Input Range
DC Input Range
Power
Min.
94
50
36
-
Max.
245
60
60
50
Unit
Vac
Hz
Vdc
W
Package Characteristics
Parameter
Height
Width
Depth
Weight
Dimension
1.75 (44), 1U
19 (483)
17.77(452) with fans
9.0 (4)
Unit
in. (mm.)
in. (mm.)
in. (mm.)
lbs. (kg.)
Part Number / Ordering Information
(Note: customization can be made available upon request)
755MM-U
-
-
-
- XX -
Channel Plan
A = NTSC 80-Ch
L Band Option
50 = 50 ohm
75 = 75 ohm
Options
Connectors
ITU Wavelengths
AC Power Cord
NA = N.AMERICA
UK = U.K. & IRE.
EU = EUROPE
EC = EC NEMA
JP = JAPAN
A = Dual PS + SNMP
SC = SC/APC
ee= 21, 1560.61nm
B = Dual PS, No SNMP
FC = FC/APC
:
C = Single PS, No SNMP EC = E2000/APC ee= 59, 1530.33 nm
3 of 5
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
ITU Wavelength Channel Designations
Channel
21
23
25
27
29
31
33
Wavelength
(nm)
1560.61
1558.98
1557.36
1555.75
1554.13
1552.52
1550.92
Channel
35
37
39
41
43
45
47
Wavelength
(nm)
1549.32
1547.72
1546.12
1544.53
1542.94
1541.35
1539.77
Channel
49
51
53
55
57
59
Wavelength
(nm)
1538.19
1536.61
1535.04
1533.47
1531.90
1530.33
4 of 5
755MM-U 1550 nm Transmitter
DATASHEET- OCT, 2006
Laser Safety Information
This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH
Class IIIb laser product. This device has been classified with the FDA/CDRH under accession number 0220800.
Single-mode bulkhead receptacles with internal SC/APC connectors (standard).
Wavelength = 1.5
μm.
Maximum power = 30 mW.
Product is shipped with internal AC/DC and DC/DC power supply converters.
Caution: Use of controls, adjustments and procedures other than those specified herein may result in
hazardous laser radiation exposure.
Information contained herein is deemed to be reliable and accurate as of issue date. EMCORE reserves the right to change the design or specifications of
the product at any time without notice. EMCORE and the EMCORE logo are trademarks of EMCORE Corporation.
Today, I looked at the schematic diagram and found that JP2 is written as 5V or 3.3V. I don't understand what it means. Please tell me.
Attached are some schematic diagrams and screenshots of the inst...
[i=s] This post was last edited by paulhyde on 2014-9-15 09:39 [/i] Here are some power supply information I found recently. If you think it is useful, please take a look....
I don't know what to do during this long vacation. Does anyone have a circuit diagram of a 4-layer board? Please share one with me. Thank you again. :kiss:...
When you receive the gift, you need to reply to the post saying "I know", will the administrator give you a notification, such as mobile phone or QQ? Thank you...
I have a question for you guys. I use a normal IO port to make a PWM signal. Since the frequency is relatively high and the pulse width needs to be adjustable (256 levels), I want to make the PWM outp...
The core of a machine vision system is image acquisition and processing. All information comes from images, and image quality is crucial to the entire vision system. A good image can improve the st...[Details]
With the booming electronics industry, vision systems have become a leader in the electronics automation sector. However, the delicate nature of electronic products often affects product yields due...[Details]
On August 24th, media outlets reported, citing sources, that NavInfo, a listed company on the A-share market, is nearing completion in its acquisition of the intelligent driving c...[Details]
Zos Automotive Research Institute released the "2025
Smart Cockpit
Tier 1 Research Report (Domestic Edition)."
This report analyzes the operating conditions of more than a dozen ...[Details]
Electric vehicles' 12V batteries don't rely on a generator to power them. Only gasoline-powered vehicles rely on the engine to drive a generator to generate electricity while driving, which is used...[Details]
Electric vehicles are powered by electricity, and charging is a device that supplements the vehicle's energy source. It is common to need to recharge the vehicle when driving. But can you charge th...[Details]
Magna's integrated in-cabin perception system fuses vision and millimeter-wave radar data to detect the presence of passengers, identify stranded children, monitor driver fatigue and vital signs, a...[Details]
A pure sine wave inverter has a good output waveform with very low distortion, and its output waveform is essentially the same as the AC waveform of the mains power grid. In fact, the AC power prov...[Details]
Common methods for troubleshooting roller press bearing wear include repair welding, thermal spraying, brush plating, and scrapping and replacement. However, these methods are often subject to asse...[Details]
Lightweighting of automobiles is still a relatively unfamiliar term for automobiles. With the continuous improvement of environmental protection requirements, relevant regulations have also put for...[Details]
Traditionally, electrical energy is transmitted primarily through wires, requiring direct physical contact between the power source and the load. With the increasing number of electrical devices in...[Details]
Which is better, copper braided wire flexible connector or copper stranded wire flexible connector? When choosing copper wire flexible connector, people always struggle with whether to use copper b...[Details]
As in-vehicle audio and video entertainment features become increasingly diverse, the demand for digital transmission of audio and video information is urgent. Traditional protocols such as IEEE 13...[Details]
The assisted driving industry in 2025 stands at the dual crossroads of "large-scale implementation" and "safety upgrades." Cities like Beijing and Wuhan have already issued regulations de...[Details]
Arm helps automakers bring new models to market at least a year earlier.
Zena CSS accelerates software and silicon development, enabling faster and more efficient delivery of AI cap...[Details]
DIY/Open Source Hardware
京公网安备 11010802033920号
EEWORLD
